Fatigue crack growth in welded joints under compressive applied stresses

✍ Scribed by Akihiko Ohta; Michio Kosuge; Satoshi Nishijima

• Publisher: Springer Netherlands
• Year: 1987
• Tongue: English
• Weight: 245 KB
• Volume: 33
• Category: Article
• ISSN: 1573-2673
• DOI: 10.1007/bf00034902

✦ Synopsis

Welded structures contain in general some defects such as lack of penetration in cruciform or tee joints.

Failure of structures occasionally arises from the growth of fatigue cracks initiated from tip of these weld defects [1,2].

It is well known that the fatigue crack growth property of base metal becomes superior with decrease in the stress ratio [3,4]. However, as the stress ratio increases, the growth property tends to a unique state since the crack tip is always open beyond certain critical stress ratio.